Should China do more to reduce emissions ?

During the recent G8 summit of the world's Major industrialized countries in Germany.The United states called on China and India to shoulder more responsibility in reducing greenhouse gases.
As the disastrous effect of greenhouse gases ,climate change has been oblivious .China has become second only to the USA .Ans the experts said that in next 20 years ,China will become NO.1 in the emission of greenhouse gases.
However ,the China officials republished it's inappropriate to pressure China ,a developing country far from a modernization ,to make a concrete commitment on emissions reducing .
In my opinion ,the world 's environment is indeed at risk .As a responsible world player,China should take more responsibility to that .Also ,the developed countries have been emitting greenhouse gases for about 200 years ,it's the west who should shoulder the most .On the polluted gases and water ,from pulling simply.On the one hand ,the central government made a lot of laws against it ,on the other hand ,the local government took no notice of it .Put pressure on China ,may be a good way to solve the domestic situation .